In a game of 100, A can give B 10 points and C 19 points. How many points can B give C in a game of 100?

8 pointsCorrect answerYour answer9 pointsCorrect answerYour answer10 pointsCorrect answerYour answer11 pointsCorrect answerYour answer

Show the answer and explanation

CorrectNot quiteAnswer C

Correct answer: C

When A scores 100, B scores 90 and C scores 81.
When B scores 100, C scores $81 \times \frac{100}{90} = 90$ : B gives C 10 points.

Worth noting

9 subtracts the points, $19 - 10$ , which is B's lead in A's game of 100, not in B's own game of 100.

Ten questions from Races & Games, at your own pace.

Explanation